Automatic siphon.



H.BGHLER.

AUTOMATIC SIPHON.

APPLICATION FILED PEB. 6, 1909.

Patented July 27, 1909.

Haus-BCHER, or ZURICH', SWITZERLAND.

AUTOMATIC SIPHON.

lNo. 929,192.

Application sied February s, 1909. semi No. 476,594.

Specification of Lettersk Patent'.

. Patented-July 27. 190e.'

To all wiz-om it may concern.'

' Ile it known that I, HANS BCHLER, a

' citizen of the Republic of Switzerland, and

1 dominant pool a andI have show n the shaft' f the dominant residing at Zurich, Switzerland, 'have in-v vented certain new and useful Improvements in Automatic Siphons; and,.I do

hereby declare the following to be a full,

clear, and exactdescription of thevinvention, such as will enable others skilled in the art to which it appert-ains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

. My invention relates to automatic siphons or automatic overflow regulators for con-v trolling water levels, and-has for its objectv to provide a structure that will rapidly assume itsy maximum efliciency upon slight variations of the upper water level, together withdetails of construction` tobe hereinafter described and claimed,l

.Refer/ring to the drawings in which like parts are similarly designated, Figure l is a vertical section of one form of my invention. Fig. 2 is a modification thereof and Fig. 3 is a plan of Fig. 2. Figrt is a further modification and Figs. 5 and G show ,other Hcretofore it has been customary to pro-I vide siphons at either their upper or lower ends or both with curved endsl sealed by the water and these curved ends ,I entirely dispense with in my invention. Furthermore, such siphons have only from 30 to 409i efficiency while with the structure herein shown and described numerous experiments shoe/ an efficiency of about a 1s the upper water level or dominant pooh?) thelower level or race-Way, sepa-` rated from one another bymeans of a partition o. Passin through thev 'art-ition c is.a column 1 o the siphon w ose lower edge is slightly below the level of thev discharge water in the race-way b Iand its upper end is at the ylevel to be maintained in the as enlargedor-A widened at'its upper end 2 to form an enlarged mouth or entrance to the siphon column.;

'Over the upper end 2 I forma chamber o r cap 3 whoselower edges are at or slightly below the water level to be maintained in ool a'. So much of this structure is 'o ratfve to a large de ree and in l order to mcreasethe efliciency I ave shown substantially horizontal planes.

a central pipe /I- whoselower end is sealed 5 .I

by the discharge water; or tail race, and whose upper end passes through the cap or bell 3, and is open to the atmosphere.r

The operation is as follows :-A very slight rise in the upper level will cause the water inthe dominant pool a to overflow` the edges of the upper enlarged end 2 of. the shaft ll, carrying with it a certain quantity of air which is discharged into the discharge water below the partition o. Thus the air is continuallyexhausted, increasing* the ,vacuum in the hood.- or cover 3, thereby causing the water between ther edge` of the cover 3 and the mouth or upper end ofthe shaft to rise and maintain a higher level over the edge of the mouth of the column than the' level of the water outside 'ofthe vhood 3, Thedegree of yvacuum is constantly increased until the hood 3 is. entirely filled with water. In order to more rapidly cause the siphon to reach its maximum efhci'chcy, I provide the pipe 4, so that the bubbles, of air that are carried down into the lower body of water b when rising to the'surface, will break within the pipe 4: and discharge theren through into the atmosphere.

InFigs Q and 3 I have shown a slight4 of eddies inthe Water during the operation-V of the Siphon. In F igs. 2A and 3 I have shown but'a single vane, but it is, of course,

obvious that any number of vanes, here` i shown as being perpendicular, may be provided around the top of the column.

In Fig; 4 I have shown a modification in whichthe siphon l is perfectly straight and of 'uniform diameter throughout, but in-` clined, its entrance and exit, however,are in Its upper end is covered by a suitable cover or hood 3', similar Vto the cover of Fig. 1, and identical in its operation.

`In Fig. 5 I have shown column 1b of uniform diameter throughout but slightly bent, and in Fig. 6 I have shown another form of bent column. As soon as the partial vacuum in 3 or` 3 has been set up, the usual contraction or diminution of suction of the water entering the top of a column disappears, and 'i the same is the case at the exhaust or discharge end of the column. The water issuing from the lower end of the column is not broken up, as is sometimes the/case in .tranee to its exit, consequently the suction etl'ected is greater, and the cover or bell is rapidly exhausted of air.

I claim .1. Automatic, overflow regulator, comprising a siphon column extending from the upper to the lower liquid level, whose upper end is directed upwardly and whose lower end is directed downwardly, in combination with a hood overthe upper end of the column, whose edges are at or below the level of the liquid 'to be controlled.

2. Automatic overiiow regulator for maintaining a constant liquid level, comprising a pipe extending from' the upper to the lower liquid level, whose upper Vend is enlarged and directed upwardly and whose lower end is directeddownwardly, and located at l'the respective normal liquid levels, in combination with a hood over the upper end of the pipe, whose edges are at or below the level of the liquid to be controlled.

3. An automatic overlowregu'lator for maintaining a constant liquid level, comprisi ing a pipel extending from the upper to the lower liquid level, having a conical mouth directed upwardly and whose lower end is directed downwardly; in combination with a hood over 4the up'per end of the pipe and whose edges are at orA below the level of the liquid -tobe controlled.

4. Automatic overtiow regulator for maintaining a constantpliquid level, comprising a column'- extending from. theupper to the lower level, whoseupper endis directed upwardly and .whose lower end is directed downwardlyand located at the respective' normal liquid levels, in combination with a hood over the upper end of the column, whose edges are at or below 'the level of the liquid to be controlled, and a pipe terminating within the column substantially .at its`- exit and discharging into the atmosphere :outside the column.

, 5, Automatic overflow regulator for maintaininga' constant liquid level, comprising a coluinn"extending froml the upper to the ,flower'tliquidlevel, whose upper end is directedl upwardly and whose lower end is directed downwardly and located at the i'espective normal liquid levels; in combination with a hood over the upper end .of the column, whose edges are at or below the level i of the liquidto be controlled,` andfa ipe contained within the column extending rom substantially the lower liquid level to and v through the hood'.

` G. Automatic overflow regulator for main- .taining `a constant liquid level, comprising a pipeextending from the upper to the lower liquid level, whose upper end is directed upwardly and whose lower end is directed;-

dowiiwardly and 'located at the respective vnormal liquid levels; in combination with a hood over the upperzend of the pipe,- whose edges areat or below the level of'the liquid to be controlled and means to prevent eddies at the entrance of the hood. 4

7. Automatic overflow regulator f or maintaining a consta-nt liquid level, comprising a pipe extending from the upper to the lower liquid, level, whose upper end is directed upwardly and whose lower end is directed downwardly and located at the respective normal liquidI levels', in combination with a hood over the upper end of the )ipe whose edges are at or below-the level of the liquid to be controlled, and perpendicular'vanes or plates in proximity to the entrance to the hood.

8.' An automatic overflow regulator for maintaining a constant liquid level, com-- prising a column extending from the upper to the lower liquid level, whose upper end is directedf upwardly and whose lower 'end is directed downwardly and located at the respective normal liquid levels; in combination with a hood overjthe upper end of' the col- "umn, whose edges are at or below the level of the liquid to be controlled, a pipe contained within the column extending from substantially the lower liquid level to and through the hood, and perpendicular vane or van'es secured to the upper end of the col# umn and extending past the edgesof the hood.

n testimony that I. claim the foregoing I as my inventoint have signed my name in `A.presence of two subscribing witnesses.

-p HANS BUCHLER.

Witnesses:

EDUARD Srinnnn, M. SoHUMAN-N. 

